﻿using System;
using System.Net;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Data;
using Feedbook.Services;

namespace Feedbook.Automation
{
    internal class AttachmentToPreviewConverter : IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            var attachment = value as Attachment;
            if (attachment != null)
            {
                switch (attachment.SocialType)
                {
                    case SocialType.Photo:
                        return attachment.Links.FirstOrDefault(l => l.Rel == "enclosure").HRef;
                    case SocialType.Video:
                        return attachment.Links.FirstOrDefault(l => l.Rel == "preview" && l.Type.StartsWith("image")).HRef;
                    case SocialType.Article:
                    case SocialType.Note:
                        return value;
                }
            }

            return value;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        #endregion
    }
}
